The special technology of canopy tube pipes are used in order to drive tunnels economically in poor ground conditions. Perforated pipes, which are subsequently grout injected, are drilled into the friable ground. A protective arch shaped cover of pipes is created under which the tunnel can be excavated.

We supply casing tubes, reamers and pilot drill bits. If required our technical support personnel can be on site to advice at the initial drilling stages and canopy tube installation.